Technically a misdemeanor, but rarely prosecuted. However, ISPs can throttle your connection or terminate your service if they detect P2P traffic (Acestream looks like BitTorrent).
When you watch a stream via Ace Stream , you are both a client and a server: you download data from other peers while simultaneously uploading that same data to others watching the same feed. The Legality of "BBC Ace Stream" bbc acestream
: Download the Ace Stream engine or media player on your device (Windows, Android, etc.). Technically a misdemeanor, but rarely prosecuted
Some UK residents reject the TV Licence on principle—either for financial reasons or ideological opposition to the mandatory fee. While watching live BBC broadcasts without a licence is a criminal offence in the UK, the anonymity of P2P streaming makes prosecution nearly impossible. The Legality of "BBC Ace Stream" : Download